<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Title</title>
</head>
<body>
<div id="app">
  <h2>{{ msg }}</h2>
  <h2>{{msg}},李银河</h2>
  {{firstName+' '+lastName}}
  <br>
  {{count*2}}
</div>
<script src="../node_modules/vue/dist/vue.js"></script>
<script>
    new Vue({
        el: "#app",
        data: {
            msg: "你好啊",
            firstName:"wang",
            lastName:"zhiyuan",
            count:100
        }
    })
</script>

</body>
</html>